Stefan Edberg won a match over Michael Chang yesterday -- and with it the No. 1 ranking in men's tennis.

Edberg defeated Chang, 3-6, 6-3, 6-4, to move to the semifinals of the ATP Championship in Mason, Ohio, and earn the points needed to pass Ivan Lendl for the top spot in the ATP computer rankings.

"Not everyone is going to be No. 1 in the rankings," the 24-year-old Swede said. "You need to play good tennis. I've done that this year. {Being No. 1} is something that I've wanted to do. The last couple of years I thought I had a chance. Now I've done it."

Edberg, the Wimbledon champion, is the eighth No. 1 since the computer ratings began in 1973. Lendl has been No. 1 for most of the last seven years, except for a brief period when Mats Wilander was on top.

"People used to say Edberg didn't have any fight in him," said Chang. "Now he's been up there for quite some time and he's starting to get that determination."

Edberg next will meet fifth-ranked Andres Gomez, the tournament's third seed. Gomez defeated Jim Courier, 6-1, 6-4, in the quarterfinals. Defending champion Brad Gilbert held off Jakob Hlasek, 2-6, 6-1, 7-5, to earn a spot in the semifinals against Scott Davis, who outlasted Richard Fromberg, 4-6, 6-4, 7-6 (10-8). . . .

Steffi Graf surged past Nathalie Tauziat, 6-3, 6-2, to advance to the Great American semifinals in San Diego.

Top-ranked Graf will meet Zina Garrison, who cruised by Terry Phelps, 6-0, 6-3. Today's other semifinal: Manuela Maleeva-Fraginere vs. Barbara Paulus.